It cannot find the JPG file

It cannot find the jpg file though it is existing it says that

Error using imread>get_full_filename (line 570)

File "RIGHT.JPEG" does not exist.

Error in imread (line 377)

fullname = get_full_filename(filename);

Error in final (line 5)

right = imread('RIGHT.JPEG');

how to fixed this

[Riccardo Scorretti]

If you are sure it exists, perhaps it is not on the right path. What if you display the files? Can you post it?

pwd

dir *.JPEG